Attorney General Jeff Sessions was forced to resign Wednesday, sparking questions about the future of the Russia investigation.

Guests

Margaret Talev, senior White House correspondent for Bloomberg News. Board member and past president of the White House Correspondents Association and the Washington Press Club Foundation. Fellow at the Harvard Kennedy School’s Institute of Politics. (@margarettalev)

Rep. Joaquin Castro, Democratic congressman representing Texas’ 20th District, who won re-election on Tuesday to his fourth term. He will be a majority member of the House Select Committee on Intelligence and also serves on the Foreign Affairs Committee. (@JoaquinCastrotx)

Marc Lotter, former spokesman for Vice President Pence, former special assistant to President Trump. Trump 2020 advisory council member. (@marc_lotter)

“During his nearly two years running the Department of Justice, Sessions was the most important player in Trump’s crackdown on immigration — an effort to reduce the number of mostly Hispanic migrants entering the United States, which the president dressed up as protecting the ‘rule of law.’

“As Vox’s Dara Lind put it: ‘If President Trump and all his appointees left office tomorrow, instead of Sessions, the mark Sessions has left on policy would be the most enduring.’ ”

“Trump, who requested Sessions’ resignation, named Matthew Whitaker to serve as interim attorney general. Whitaker was Sessions’ chief of staff and had been considered for a variety of jobs in the Trump administration, including the No. 2 post at Justice or as White House counsel.”